Dragonstar

Brutorz Bill's Dragonstar Page
Includes a lot of information, mostly pertaining to converting Alternity for use with the Dragonstar campaign setting. Content requires Adobe Acrobat Reader to view.
http://www.angelfire.com/games/Alterniverse/dragonstar/dstar1.htm

Chrysalis - Campaign to the Stars
Chrysalis explains a Dragonstar campaign being ran that deals with a crew piloting a super advanced proto-type starship.
http://www.angelfire.com/tx3/baalek/dragonstar/main.html

Darkstar
The campaign site for Darkstar, a game playing out in the Dragonstar universe.
http://www.hastur.net/dragonstar/

Fantasy Flight Games - Dragonstar
The official Dragonstar website.
http://www.fantasyflightgames.com/dragonstar.html

Starfarer's Netbook
Contains new rules, classes, weapons, etc. for Dragonstar. Not a lot content yet.
http://starfarer.spieler-im-exil.de/index.html

Yahoo! Groups: Dragonstar
The official mailing list for the Dragonstar campaign setting. Has over 700 members and is fairly active.
http://games.groups.yahoo.com/group/dsd20/